ethyl (2E)-2-[(1-methyl-5-nitroimidazol-2-yl)methylidene]-3-oxobutanoate ethyl (2E)-2-[(1-methyl-5-nitro-imidazol-2-yl)methylene]-3-oxo-butanoate (2E)-2-[(1-methyl-5-nitro-2-imidazolyl)methylene]-3-oxobutanoic acid ethyl ester (E)-2-acetyl-3-(1-methyl-5-nitro-imidazol-2-yl)acrylic acid ethyl ester ethyl (2E)-2-[(1-methyl-5-nitro-imidazol-2-yl)methylidene]-3-oxo-butanoate 76448-31-2 Ethyl trans-alpha-acetyl-1-methyl-5-nitroimidazole-2-acrylate Propenidazole Propenidazole [INN]